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Your Position :Home->Past Journals Catalog->2010年47 No.2

The biological and ecological characteristics of Dioryctria rubella damaging the Pinus kesiya var. langbianensis
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Abstract:Dioryctria rubella Hampson caused severe damage to Pinus kesiya var. langbianensis Chev. in Pu’ er city,Yunnan province has 3 generations a year and overlap extensively according to the field and laboratory observations of its biology and ecology. Its larvae infest shoots of pines and have the habit of transferring shoots, branch,and plant which based on the climate and the development conditions of its host. In the rain season, the damage rate is 35% - 40% via the action of tranferring plant. In the dry season,the damage rate is 90% - 100% via the action of transferring shoots. The third generation of D. rubella can cause more damage than the first and second one. The research results can facilitate the management of D. rubella.
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